52251012 has 36 divisors (see below), whose sum is σ = 144087216. Its totient is φ = 15833520.

The previous prime is 52250941. The next prime is 52251029. The reversal of 52251012 is 21015225.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65578 + ... + 66369.

Almost surely, 2^52251012 is an apocalyptic number.

It is an amenable number.

52251012 is an abundant number, since it is smaller than the sum of its proper divisors (91836204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52251012 is a wasteful number, since it uses less digits than its factorization.

52251012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131968 (or 131963 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 52251012 is about 7228.4861485653. The cubic root of 52251012 is about 373.8507320869.

Adding to 52251012 its reverse (21015225), we get a palindrome (73266237).

The spelling of 52251012 in words is "fifty-two million, two hundred fifty-one thousand, twelve".